> It just seems so thunderingly obvious today. If you ignore the path dependency it is not. The smartphones are mostly computers with phone functionality being

> It just seems so thunderingly obvious today. If you ignore the path dependency it is not. The smartphones are mostly computers with phone functionality being a vestigial feature. An alternate history might have consisted of laptops shrinking to tablets and then "micro-tablets" or something which don't have a phone functionality (data plans only) and the calls would happen over IP.